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diff --git a/src/imports/particles/particleaffector.h b/src/imports/particles/particleaffector.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Declarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef PARTICLEAFFECTOR_H
+#define PARTICLEAFFECTOR_H
+
+#include <QObject>
+#include "particlesystem.h"
+#include "particleextruder.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+
+
+class ParticleAffector : public QSGItem
+{
+    Q_OBJECT
+    Q_PROPERTY(ParticleSystem* system READ system WRITE setSystem NOTIFY systemChanged)
+    Q_PROPERTY(QStringList particles READ particles WRITE setParticles NOTIFY particlesChanged)
+    Q_PROPERTY(bool active READ active WRITE setActive NOTIFY activeChanged)
+    Q_PROPERTY(bool onceOff READ onceOff WRITE setOnceOff NOTIFY onceOffChanged)
+    Q_PROPERTY(ParticleExtruder* shape READ shape WRITE setShape NOTIFY shapeChanged)
+    Q_PROPERTY(bool signal READ signal WRITE setSignal NOTIFY signalChanged)
+
+public:
+    explicit ParticleAffector(QSGItem *parent = 0);
+    virtual void affectSystem(qreal dt);
+    virtual void reset(int systemIdx);//As some store their own data per idx?
+    ParticleSystem* system() const
+    {
+        return m_system;
+    }
+
+    QStringList particles() const
+    {
+        return m_particles;
+    }
+
+    bool active() const
+    {
+        return m_active;
+    }
+
+    bool onceOff() const
+    {
+        return m_onceOff;
+    }
+
+    ParticleExtruder* shape() const
+    {
+        return m_shape;
+    }
+
+    bool signal() const
+    {
+        return m_signal;
+    }
+
+signals:
+
+    void systemChanged(ParticleSystem* arg);
+
+    void particlesChanged(QStringList arg);
+
+    void activeChanged(bool arg);
+
+    void onceOffChanged(bool arg);
+
+    void shapeChanged(ParticleExtruder* arg);
+
+    void affected(qreal x, qreal y);//###Idx too?
+    void signalChanged(bool arg);
+
+public slots:
+void setSystem(ParticleSystem* arg)
+{
+    if (m_system != arg) {
+        m_system = arg;
+        m_system->registerParticleAffector(this);
+        emit systemChanged(arg);
+    }
+}
+
+void setParticles(QStringList arg)
+{
+    if (m_particles != arg) {
+        m_particles = arg;
+        m_updateIntSet = true;
+        emit particlesChanged(arg);
+    }
+}
+
+void setActive(bool arg)
+{
+    if (m_active != arg) {
+        m_active = arg;
+        emit activeChanged(arg);
+    }
+}
+
+void setOnceOff(bool arg)
+{
+    if (m_onceOff != arg) {
+        m_onceOff = arg;
+        emit onceOffChanged(arg);
+    }
+}
+
+void setShape(ParticleExtruder* arg)
+{
+    if (m_shape != arg) {
+        m_shape = arg;
+        emit shapeChanged(arg);
+    }
+}
+
+void setSignal(bool arg)
+{
+    if (m_signal != arg) {
+        m_signal = arg;
+        emit signalChanged(arg);
+    }
+}
+
+protected:
+    friend class ParticleSystem;
+    virtual bool affectParticle(ParticleData *d, qreal dt);
+    bool m_needsReset;//### What is this really saving?
+    ParticleSystem* m_system;
+    QStringList m_particles;
+    bool activeGroup(int g) {return m_groups.isEmpty() || m_groups.contains(g);}
+    bool m_active;
+    virtual void componentComplete();
+    QPointF m_offset;
+private:
+    QSet<int> m_groups;
+    QSet<int> m_onceOffed;
+    bool m_updateIntSet;
+
+    bool m_onceOff;
+
+    ParticleExtruder* m_shape;
+
+    bool m_signal;
+
+private slots:
+    void updateOffsets();
+};
+
+QT_END_NAMESPACE
+QT_END_HEADER
+#endif // PARTICLEAFFECTOR_H